SAA7144 NXP Semiconductors, SAA7144 Datasheet - Page 40

• Manufacturer Part Number: SAA7144
• Manufacturer: NXP Semiconductors

Specifications of SAA7144

• Package Type: LQFP
• Lead Free Status / RoHS Status: Compliant

Philips Semiconductors
Table 33:
[1]
Table 34:
Table 35:
9397 750 14454
Product data sheet
Bit
3
2
1 and 0
Offset
255 (bright)
128 (CCIR level)
0 (dark)
Gain
1.999 (maximum)
1.109 (CCIR level)
1.0
0 (luminance off)
1 (inverse luminance)
2 (inverse luminance)
Not to be used with bypassed chrominance trap.
Symbol
VBLB
UPTCV
APER[1:0]
Luminance control - bit description
Luminance brightness control
Luminance contrast control
9.3.10 Subaddress 0Ah
9.3.11 Subaddress 0Bh
Description
vertical blanking luminance bypass
update time interval for analog AGC value
aperture factor; see
0 = active luminance processing
1 = chrominance trap and peaking stage are disabled during VBI lines determined by
VREF = 0; see
0 = horizontal update (once per line)
1 = vertical update (once per field)
00 = aperture factor is 0
01 = aperture factor is 0.25
10 = aperture factor is 0.5
11 = aperture factor is 1.0
Control bits 7 to 0
BRIG7
1
1
0
Control bits 7 to 0
CONT7
0
0
0
0
1
1
Table 41
Figure 11
…continued
Rev. 01 — 21 April 2005
1
1
0
BRIG6
1
0
0
CONT6
1
1
0
to
Figure 16
BRIG5
1
0
0
CONT5
1
0
0
0
0
0
BRIG4
1
0
0
CONT4
1
0
0
0
0
0
BRIG3
1
0
0
CONT3
1
0
0
0
0
0
Quadruple video input processor
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
BRIG2
1
0
0
CONT2
1
1
0
0
0
0
SAA7144HL
BRIG1
1
0
0
CONT1
1
1
0
0
0
0
BRIG0
1
0
0
CONT0
1
1
0
0
0
0
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